## Hot Topics

### Hot topic: New results! LHCb discovers pentaquark particle

Quantum diarist Adam Davis tells us how it was done.

### Finding a five-leafed clover

Adam Davis | July 15, 2015

Photo Credit: Cathy Händel

Sometimes when you’re looking for something else, you happen across an even more exciting result. That’s what’s happened at LHCb

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## Latest Posts

### Trop passionnant pour ne pas partager

Monday, July 27th, 2015

La plupart des physiciens et physiciennes sont d’accord: la physique est bien trop passionnante pour la réserver seulement aux scientifiques. Et pour la première fois, la Société Européenne de Physique (EPS) y a consacré une session entière samedi lors de sa conférence de physique des particules en cours à Vienne. Plusieurs y ont rapporté des

### Too exciting to leave it only to physicists

Monday, July 27th, 2015

Most physicists agree: physics is too interesting to leave it only to physicists. For the first time, the European Physics Society (EPS) dedicated a whole session to Outreach this year at its ongoing Particle Physics conference in Vienna. The participants reported on a wealth of creative initiatives undertaken by individuals or institutions to share the

### Matière sombre et énergie sombre n’ont qu’à bien se tenir

Friday, July 24th, 2015

La matière sombre et l’énergie sombre sont bien en évidence à la conférence de physique des particules de la Société de Physique Européenne à Vienne. Bien que les physiciens et physiciennes comprennent maintenant assez bien les constituants de base de la matière, tout ce que l’on voit sur la Terre, dans les étoiles et les

### Dark matter and dark energy better watch out

Friday, July 24th, 2015

Dark matter and dark energy feature prominently at the European Physics Society conference on particle physics in Vienna. Although physicists now understand pretty well the basic constituents of matter, all what one sees on Earth, in stars and galaxies, this huge amount of matter only accounts for 5% of the whole content of the Universe.

### Fermilab magnet team helps bring brighter beams to APS Upgrade Project at Argonne

Friday, July 24th, 2015

This article appeared in Fermilab Today on July 24, 2015. A magnet two meters long sits in the Experiment Assembly Area of the Advanced Photon Source at Argonne National Laboratory. The magnet, built by Fermilab’s Technical Division, is fire engine red and has on its back a copper coil that doesn’t quite reach from one

### Antineutrinos et pentaquarks : ça chauffe à Vienne!

Thursday, July 23rd, 2015

“Nous posons des questions depuis 1365″. Cette déclaration inspirante accrochée près de son imposant portail d’entrée, marque le 650ième anniversaire de l’Université de Vienne. Cette bannière accueillait ce matin les 730 physiciens et physiciennes venu assister à la principale conférence de physique des particules de l’année organisée par la Société Européenne de Physique. Pendant une

### Antineutrinos and pentaquarks: it’s hot in Vienna!

Thursday, July 23rd, 2015

« We have been asking questions since 1365 ». This inspiring statement marking the 650th anniversary of the University of Vienna, is hanging near the imposing entrance of its main building. This sign welcomed this morning the 730 physicists who came to Vienna to participate to the main particle physics conference this year organised by the European

### Nerds and Names

Thursday, July 16th, 2015

If there’s one thing that makes me jealous about planetary scientists, it’s how many things they get to name. They also seem to have an awful lot of fun with it. Consider these typical naming processes: Experimental particle physicists: “Jeff Weiss did an ‘availability search” of the Greek alphabet and found that the Greek letter

### Finding a five-leafed clover

Wednesday, July 15th, 2015

Sometimes when you’re looking for something else, you happen across an even more exciting result. That’s what’s happened at LHCb, illustrated in the paper “Observation of $$J/\psi p$$ resonances consistent with pentaquark states in $$\Lambda_b^0\to J/\psi K^-p$$ decays”, released on the arXiv on the 14th of July. I say this is lucky because the analysts found